402047049 has 16 divisors (see below), whose sum is σ = 565006400. Its totient is φ = 253596096.

The previous prime is 402047047. The next prime is 402047077. The reversal of 402047049 is 940740204.

It is not a de Polignac number, because 402047049 - 2¹ = 402047047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402047047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44487 + ... + 52755.

It is an arithmetic number, because the mean of its divisors is an integer number (35312900).

Almost surely, 2^402047049 is an apocalyptic number.

It is an amenable number.

402047049 is a deficient number, since it is larger than the sum of its proper divisors (162959351).

402047049 is a wasteful number, since it uses less digits than its factorization.

402047049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9144.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 402047049 is about 20051.1109168545. The cubic root of 402047049 is about 738.0610605246.

The spelling of 402047049 in words is "four hundred two million, forty-seven thousand, forty-nine".