1072651438 has 4 divisors (see below), whose sum is σ = 1608977160. Its totient is φ = 536325718.

The previous prime is 1072651427. The next prime is 1072651439. The reversal of 1072651438 is 8341562701.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1072651438² = 2301162214886935688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1072651397 and 1072651406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072651439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268162858 + ... + 268162861.

It is an arithmetic number, because the mean of its divisors is an integer number (402244290).

Almost surely, 2^1072651438 is an apocalyptic number.

1072651438 is a deficient number, since it is larger than the sum of its proper divisors (536325722).

1072651438 is an equidigital number, since it uses as much as digits as its factorization.

1072651438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536325721.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 1072651438 is about 32751.3578039140. The cubic root of 1072651438 is about 1023.6532582269.

The spelling of 1072651438 in words is "one billion, seventy-two million, six hundred fifty-one thousand, four hundred thirty-eight".