1900090054 has 8 divisors (see below), whose sum is σ = 2850401808. Its totient is φ = 949956120.

The previous prime is 1900090021. The next prime is 1900090081. The reversal of 1900090054 is 4500900091.

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

It is a super-2 number, since 2×1900090054² = 7220684426619445832, which contains 22 as substring.

It is a congruent number.

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, 13402 + ... + 63085.

It is an arithmetic number, because the mean of its divisors is an integer number (356300226).

Almost surely, 2^1900090054 is an apocalyptic number.

1900090054 is a deficient number, since it is larger than the sum of its proper divisors (950311754).

1900090054 is a wasteful number, since it uses less digits than its factorization.

1900090054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88910.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1900090054 is about 43590.0224133918. The cubic root of 1900090054 is about 1238.5818973021.

The spelling of 1900090054 in words is "one billion, nine hundred million, ninety thousand, fifty-four".