20370473140 has 12 divisors (see below), whose sum is σ = 42777993636. Its totient is φ = 8148189248.

The previous prime is 20370473131. The next prime is 20370473143. The reversal of 20370473140 is 4137407302.

It can be written as a sum of positive squares in 2 ways, for example, as 15315547536 + 5054925604 = 123756^2 + 71098^2 .

It is a super-2 number, since 2×20370473140² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20370473143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509261809 + ... + 509261848.

It is an arithmetic number, because the mean of its divisors is an integer number (3564832803).

Almost surely, 2^20370473140 is an apocalyptic number.

20370473140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20370473140 is an abundant number, since it is smaller than the sum of its proper divisors (22407520496).

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

20370473140 is a wasteful number, since it uses less digits than its factorization.

20370473140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018523666 (or 1018523664 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The spelling of 20370473140 in words is "twenty billion, three hundred seventy million, four hundred seventy-three thousand, one hundred forty".