4272465640 has 32 divisors (see below), whose sum is σ = 9708235560. Its totient is φ = 1692064000.

The previous prime is 4272465623. The next prime is 4272465643. The reversal of 4272465640 is 465642724.

It can be written as a sum of positive squares in 4 ways, for example, as 3984891876 + 287573764 = 63126^2 + 16958^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4272465593 and 4272465602.

It is not an unprimeable number, because it can be changed into a prime (4272465643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524731 + ... + 532810.

Almost surely, 2^4272465640 is an apocalyptic number.

4272465640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4272465640 is an abundant number, since it is smaller than the sum of its proper divisors (5435769920).

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

4272465640 is a wasteful number, since it uses less digits than its factorization.

4272465640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057653 (or 1057649 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 40.

The square root of 4272465640 is about 65364.1005445650. The cubic root of 4272465640 is about 1622.6550021551.

The spelling of 4272465640 in words is "four billion, two hundred seventy-two million, four hundred sixty-five thousand, six hundred forty".