1055870390 has 16 divisors (see below), whose sum is σ = 1923466608. Its totient is φ = 417259296.

The previous prime is 1055870341. The next prime is 1055870393. The reversal of 1055870390 is 930785501.

It is a super-2 number, since 2×1055870390² = 2229724560957504200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055870393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635237 + ... + 636896.

It is an arithmetic number, because the mean of its divisors is an integer number (120216663).

Almost surely, 2^1055870390 is an apocalyptic number.

1055870390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055870390 is a deficient number, since it is larger than the sum of its proper divisors (867596218).

1055870390 is a wasteful number, since it uses less digits than its factorization.

1055870390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272223.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 1055870390 is about 32494.1593213303. The cubic root of 1055870390 is about 1018.2870101126.

The spelling of 1055870390 in words is "one billion, fifty-five million, eight hundred seventy thousand, three hundred ninety".