1802990654 has 16 divisors (see below), whose sum is σ = 2823219360. Its totient is φ = 861949440.

The previous prime is 1802990653. The next prime is 1802990687. The reversal of 1802990654 is 4560992081.

It is a super-2 number, since 2×1802990654² = 6501550596822695432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802990653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133442 + ... + 146330.

It is an arithmetic number, because the mean of its divisors is an integer number (176451210).

Almost surely, 2^1802990654 is an apocalyptic number.

1802990654 is a deficient number, since it is larger than the sum of its proper divisors (1020228706).

1802990654 is a wasteful number, since it uses less digits than its factorization.

1802990654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15955.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1802990654 is about 42461.6374389872. The cubic root of 1802990654 is about 1217.1137212285.

The spelling of 1802990654 in words is "one billion, eight hundred two million, nine hundred ninety thousand, six hundred fifty-four".