772240392 has 432 divisors, whose sum is σ = 2814673680. Its totient is φ = 197588160.

The previous prime is 772240363. The next prime is 772240421. The reversal of 772240392 is 293042277.

It is an interprime number because it is at equal distance from previous prime (772240363) and next prime (772240421).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 11525943 + ... + 11526009.

Almost surely, 2^772240392 is an apocalyptic number.

772240392 is a gapful number since it is divisible by the number (72) 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 772240392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407336840).

772240392 is an abundant number, since it is smaller than the sum of its proper divisors (2042433288).

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

772240392 is a wasteful number, since it uses less digits than its factorization.

772240392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 772240392 is about 27789.2135908881. The cubic root of 772240392 is about 917.4537311317.

The spelling of 772240392 in words is "seven hundred seventy-two million, two hundred forty thousand, three hundred ninety-two".