1372720442 has 8 divisors (see below), whose sum is σ = 2074799232. Its totient is φ = 681120700.

The previous prime is 1372720411. The next prime is 1372720487. The reversal of 1372720442 is 2440272731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1372720442² = 3768722823769350728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1372720399 and 1372720408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2619434 + ... + 2619957.

It is an arithmetic number, because the mean of its divisors is an integer number (259349904).

Almost surely, 2^1372720442 is an apocalyptic number.

1372720442 is a deficient number, since it is larger than the sum of its proper divisors (702078790).

1372720442 is a wasteful number, since it uses less digits than its factorization.

1372720442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239524.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 1372720442 is about 37050.2421314625. The cubic root of 1372720442 is about 1111.3751973084.

The spelling of 1372720442 in words is "one billion, three hundred seventy-two million, seven hundred twenty thousand, four hundred forty-two".