1900578072 has 16 divisors (see below), whose sum is σ = 4751445240. Its totient is φ = 633526016.

The previous prime is 1900578059. The next prime is 1900578077. The reversal of 1900578072 is 2708750091.

It is a super-2 number, since 2×1900578072² = 7224394015534474368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1900578072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900578077) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 39595353 + ... + 39595400.

Almost surely, 2^1900578072 is an apocalyptic number.

1900578072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1900578072 is an abundant number, since it is smaller than the sum of its proper divisors (2850867168).

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

1900578072 is a wasteful number, since it uses less digits than its factorization.

1900578072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79190762 (or 79190758 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 1900578072 is about 43595.6198717256. The cubic root of 1900578072 is about 1238.6879271045.

The spelling of 1900578072 in words is "one billion, nine hundred million, five hundred seventy-eight thousand, seventy-two".