401494942 has 4 divisors (see below), whose sum is σ = 602242416. Its totient is φ = 200747470.

The previous prime is 401494939. The next prime is 401494949. The reversal of 401494942 is 249494104.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×401494942² = 322396376903166728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401494949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100373734 + ... + 100373737.

It is an arithmetic number, because the mean of its divisors is an integer number (150560604).

Almost surely, 2^401494942 is an apocalyptic number.

401494942 is a deficient number, since it is larger than the sum of its proper divisors (200747474).

401494942 is a wasteful number, since it uses less digits than its factorization.

401494942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200747473.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 401494942 is about 20037.3386955454. The cubic root of 401494942 is about 737.7230608237.

The spelling of 401494942 in words is "four hundred one million, four hundred ninety-four thousand, nine hundred forty-two".