742878464 has 36 divisors (see below), whose sum is σ = 1487083584. Its totient is φ = 370380288.

The previous prime is 742878463. The next prime is 742878503. The reversal of 742878464 is 464878247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742878463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89999 + ... + 97905.

Almost surely, 2^742878464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742878464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743541792).

742878464 is an abundant number, since it is smaller than the sum of its proper divisors (744205120).

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

742878464 is an equidigital number, since it uses as much as digits as its factorization.

742878464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8290 (or 8276 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 50.

The square root of 742878464 is about 27255.7968880016. The cubic root of 742878464 is about 905.6754372849.

The spelling of 742878464 in words is "seven hundred forty-two million, eight hundred seventy-eight thousand, four hundred sixty-four".