1057450719 has 32 divisors (see below), whose sum is σ = 1613364480. Its totient is φ = 610682112.

The previous prime is 1057450717. The next prime is 1057450727. The reversal of 1057450719 is 9170547501.

It is not a de Polignac number, because 1057450719 - 2¹ = 1057450717 is a prime.

It is a super-2 number, since 2×1057450719² = 2236404046227233922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057450717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72619 + ... + 85955.

It is an arithmetic number, because the mean of its divisors is an integer number (50417640).

Almost surely, 2^1057450719 is an apocalyptic number.

1057450719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1057450719 is a deficient number, since it is larger than the sum of its proper divisors (555913761).

1057450719 is a wasteful number, since it uses less digits than its factorization.

1057450719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13479.

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 1057450719 is about 32518.4673531826. The cubic root of 1057450719 is about 1018.7947827605.

The spelling of 1057450719 in words is "one billion, fifty-seven million, four hundred fifty thousand, seven hundred nineteen".