400741049 has 4 divisors (see below), whose sum is σ = 403140864. Its totient is φ = 398341236.

The previous prime is 400740997. The next prime is 400741057. The reversal of 400741049 is 940147004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400741049 - 2¹² = 400736953 is a prime.

It is a super-3 number, since 3×400741049³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400741079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199657 + ... + 1199990.

It is an arithmetic number, because the mean of its divisors is an integer number (100785216).

Almost surely, 2^400741049 is an apocalyptic number.

It is an amenable number.

400741049 is a deficient number, since it is larger than the sum of its proper divisors (2399815).

400741049 is a wasteful number, since it uses less digits than its factorization.

400741049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399814.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 400741049 is about 20018.5176524137. The cubic root of 400741049 is about 737.2610270073.

The spelling of 400741049 in words is "four hundred million, seven hundred forty-one thousand, forty-nine".