772842140 has 48 divisors (see below), whose sum is σ = 1867320000. Its totient is φ = 263188992.

The previous prime is 772842073. The next prime is 772842163. The reversal of 772842140 is 41248277.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 772842140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2336 + ... + 39384.

It is an arithmetic number, because the mean of its divisors is an integer number (38902500).

Almost surely, 2^772842140 is an apocalyptic number.

772842140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 772842140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933660000).

772842140 is an abundant number, since it is smaller than the sum of its proper divisors (1094477860).

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

772842140 is a wasteful number, since it uses less digits than its factorization.

772842140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37214 (or 37212 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 772842140 is about 27800.0384891820. The cubic root of 772842140 is about 917.6919698195.

The spelling of 772842140 in words is "seven hundred seventy-two million, eight hundred forty-two thousand, one hundred forty".