1402990 has 16 divisors (see below), whose sum is σ = 2539152. Its totient is φ = 558144.

The previous prime is 1402957. The next prime is 1403009. The reversal of 1402990 is 992041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2842 + ... + 3298.

It is an arithmetic number, because the mean of its divisors is an integer number (158697).

2^1402990 is an apocalyptic number.

1402990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1402990 is a deficient number, since it is larger than the sum of its proper divisors (1136162).

1402990 is a wasteful number, since it uses less digits than its factorization.

1402990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1402990 is about 1184.4787883284. The cubic root of 1402990 is about 111.9484775777.

The spelling of 1402990 in words is "one million, four hundred two thousand, nine hundred ninety".