1407900457 has 2 divisors, whose sum is σ = 1407900458. Its totient is φ = 1407900456.

The previous prime is 1407900443. The next prime is 1407900563. The reversal of 1407900457 is 7540097041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 896643136 + 511257321 = 29944^2 + 22611^2 .

It is an emirp because it is prime and its reverse (7540097041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1407900457 - 2¹⁹ = 1407376169 is a prime.

It is not a weakly prime, because it can be changed into another prime (1407900157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703950228 + 703950229.

It is an arithmetic number, because the mean of its divisors is an integer number (703950229).

Almost surely, 2^1407900457 is an apocalyptic number.

It is an amenable number.

1407900457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1407900457 is an equidigital number, since it uses as much as digits as its factorization.

1407900457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 1407900457 is about 37521.9996402111. Note that the first 3 decimals coincide. The cubic root of 1407900457 is about 1120.7893184388.

Adding to 1407900457 its reverse (7540097041), we get a palindrome (8947997498).

The spelling of 1407900457 in words is "one billion, four hundred seven million, nine hundred thousand, four hundred fifty-seven".