1372990 has 32 divisors (see below), whose sum is σ = 2635776. Its totient is φ = 514080.

The previous prime is 1372981. The next prime is 1372991. The reversal of 1372990 is 992731.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13279 + ... + 13381.

It is an arithmetic number, because the mean of its divisors is an integer number (82368).

2^1372990 is an apocalyptic number.

1372990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1372990 is a deficient number, since it is larger than the sum of its proper divisors (1262786).

1372990 is a wasteful number, since it uses less digits than its factorization.

1372990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1372990 is about 1171.7465596280. The cubic root of 1372990 is about 111.1447938623.

The spelling of 1372990 in words is "one million, three hundred seventy-two thousand, nine hundred ninety".