1400025449 has 2 divisors, whose sum is σ = 1400025450. Its totient is φ = 1400025448.

The previous prime is 1400025421. The next prime is 1400025461. The reversal of 1400025449 is 9445200041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106759824 + 293265625 = 33268^2 + 17125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400025449 - 2²⁴ = 1383248233 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400025149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700012724 + 700012725.

It is an arithmetic number, because the mean of its divisors is an integer number (700012725).

Almost surely, 2^1400025449 is an apocalyptic number.

It is an amenable number.

1400025449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400025449 is an equidigital number, since it uses as much as digits as its factorization.

1400025449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1400025449 is about 37416.9139427612. The cubic root of 1400025449 is about 1118.6957204963.

The spelling of 1400025449 in words is "one billion, four hundred million, twenty-five thousand, four hundred forty-nine".