772438132 has 6 divisors (see below), whose sum is σ = 1351766738. Its totient is φ = 386219064.

The previous prime is 772438127. The next prime is 772438153. The reversal of 772438132 is 231834277.

It can be written as a sum of positive squares in only one way, i.e., 566630416 + 205807716 = 23804^2 + 14346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 772438091 and 772438100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96554763 + ... + 96554770.

Almost surely, 2^772438132 is an apocalyptic number.

It is an amenable number.

772438132 is a deficient number, since it is larger than the sum of its proper divisors (579328606).

772438132 is a wasteful number, since it uses less digits than its factorization.

772438132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193109537 (or 193109535 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 772438132 is about 27792.7712184302. The cubic root of 772438132 is about 917.5320322326.

The spelling of 772438132 in words is "seven hundred seventy-two million, four hundred thirty-eight thousand, one hundred thirty-two".