1372442731 has 4 divisors (see below), whose sum is σ = 1497210264. Its totient is φ = 1247675200.

The previous prime is 1372442711. The next prime is 1372442741.

1372442731 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1372442731 - 2⁵ = 1372442699 is a prime.

It is a super-2 number, since 2×1372442731² = 3767198099749476722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1372442711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62383750 + ... + 62383771.

It is an arithmetic number, because the mean of its divisors is an integer number (374302566).

Almost surely, 2^1372442731 is an apocalyptic number.

1372442731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1372442731 is a deficient number, since it is larger than the sum of its proper divisors (124767533).

1372442731 is a wasteful number, since it uses less digits than its factorization.

1372442731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124767532.

The product of its digits is 28224, while the sum is 34.

The square root of 1372442731 is about 37046.4941796117. The cubic root of 1372442731 is about 1111.3002459141.

The spelling of 1372442731 in words is "one billion, three hundred seventy-two million, four hundred forty-two thousand, seven hundred thirty-one".