49402739 has 2 divisors, whose sum is σ = 49402740. Its totient is φ = 49402738.

The previous prime is 49402711. The next prime is 49402753. The reversal of 49402739 is 93720494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49402739 - 2¹⁶ = 49337203 is a prime.

It is not a weakly prime, because it can be changed into another prime (49401739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24701369 + 24701370.

It is an arithmetic number, because the mean of its divisors is an integer number (24701370).

Almost surely, 2^49402739 is an apocalyptic number.

49402739 is a deficient number, since it is larger than the sum of its proper divisors (1).

49402739 is an equidigital number, since it uses as much as digits as its factorization.

49402739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 49402739 is about 7028.7082027923. The cubic root of 49402739 is about 366.9303844772.

The spelling of 49402739 in words is "forty-nine million, four hundred two thousand, seven hundred thirty-nine".