1900620054 has 12 divisors (see below), whose sum is σ = 4118010156. Its totient is φ = 633540012.

The previous prime is 1900620053. The next prime is 1900620061. The reversal of 1900620054 is 4500260091.

It is a super-2 number, since 2×1900620054² = 7224713179333925832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900620053) 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 5 ways as a sum of consecutive naturals, for example, 52794984 + ... + 52795019.

It is an arithmetic number, because the mean of its divisors is an integer number (343167513).

Almost surely, 2^1900620054 is an apocalyptic number.

1900620054 is an abundant number, since it is smaller than the sum of its proper divisors (2217390102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1900620054 is a wasteful number, since it uses less digits than its factorization.

1900620054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105590011 (or 105590008 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1900620054 is about 43596.1013623925. The cubic root of 1900620054 is about 1238.6970475250.

It can be divided in two parts, 19006 and 20054, that added together give a triangular number (39060 = T₂₇₉).

The spelling of 1900620054 in words is "one billion, nine hundred million, six hundred twenty thousand, fifty-four".