1957420798 has 16 divisors (see below), whose sum is σ = 2957462640. Its totient is φ = 971625600.

The previous prime is 1957420771. The next prime is 1957420823. The reversal of 1957420798 is 8970247591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153408 + ... + 165676.

It is an arithmetic number, because the mean of its divisors is an integer number (184841415).

Almost surely, 2^1957420798 is an apocalyptic number.

1957420798 is a deficient number, since it is larger than the sum of its proper divisors (1000041842).

1957420798 is a wasteful number, since it uses less digits than its factorization.

1957420798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843.

The product of its (nonzero) digits is 1270080, while the sum is 52.

The square root of 1957420798 is about 44242.7485357770. The cubic root of 1957420798 is about 1250.9157658412.

The spelling of 1957420798 in words is "one billion, nine hundred fifty-seven million, four hundred twenty thousand, seven hundred ninety-eight".