787440294 has 48 divisors (see below), whose sum is σ = 1806433200. Its totient is φ = 247209408.

The previous prime is 787440287. The next prime is 787440299. The reversal of 787440294 is 492044787.

It is a super-2 number, since 2×787440294² = 1240124433229612872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787440299) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52512 + ... + 65820.

It is an arithmetic number, because the mean of its divisors is an integer number (37634025).

Almost surely, 2^787440294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 787440294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903216600).

787440294 is an abundant number, since it is smaller than the sum of its proper divisors (1018992906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

787440294 is a wasteful number, since it uses less digits than its factorization.

787440294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13509 (or 13506 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 787440294 is about 28061.3665739928. The cubic root of 787440294 is about 923.4340366675.

It can be divided in two parts, 7874402 and 94, that added together give a triangular number (7874496 = T₃₉₆₈).

The spelling of 787440294 in words is "seven hundred eighty-seven million, four hundred forty thousand, two hundred ninety-four".