403940148 has 24 divisors (see below), whose sum is σ = 942940320. Its totient is φ = 134587680.

The previous prime is 403940093. The next prime is 403940149. The reversal of 403940148 is 841049304.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403940149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27858 + ... + 39798.

It is an arithmetic number, because the mean of its divisors is an integer number (39289180).

Almost surely, 2^403940148 is an apocalyptic number.

It is an amenable number.

403940148 is an abundant number, since it is smaller than the sum of its proper divisors (539000172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

403940148 is a wasteful number, since it uses less digits than its factorization.

403940148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14767 (or 14765 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 403940148 is about 20098.2623129464. The cubic root of 403940148 is about 739.2176708988.

The spelling of 403940148 in words is "four hundred three million, nine hundred forty thousand, one hundred forty-eight".