772242372 has 36 divisors (see below), whose sum is σ = 2129517936. Its totient is φ = 234012720.

The previous prime is 772242353. The next prime is 772242377. The reversal of 772242372 is 273242277.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×772242372² = 1192716562224372768, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (772242377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 974658 + ... + 975449.

It is an arithmetic number, because the mean of its divisors is an integer number (59153276).

Almost surely, 2^772242372 is an apocalyptic number.

It is an amenable number.

772242372 is an abundant number, since it is smaller than the sum of its proper divisors (1357275564).

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

772242372 is a wasteful number, since it uses less digits than its factorization.

772242372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950128 (or 1950123 counting only the distinct ones).

The product of its digits is 65856, while the sum is 36.

The square root of 772242372 is about 27789.2492161987. The cubic root of 772242372 is about 917.4545152385.

The spelling of 772242372 in words is "seven hundred seventy-two million, two hundred forty-two thousand, three hundred seventy-two".