103440402 has 40 divisors (see below), whose sum is σ = 249617676. Its totient is φ = 31827168.

The previous prime is 103440377. The next prime is 103440409. The reversal of 103440402 is 204044301.

It can be written as a sum of positive squares in 2 ways, for example, as 103245921 + 194481 = 10161^2 + 441^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (103440409) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22453 + ... + 26664.

Almost surely, 2^103440402 is an apocalyptic number.

103440402 is an abundant number, since it is smaller than the sum of its proper divisors (146177274).

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

103440402 is a wasteful number, since it uses less digits than its factorization.

103440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49144 (or 49135 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 103440402 is about 10170.5654710050. The cubic root of 103440402 is about 469.4219572431.

Adding to 103440402 its reverse (204044301), we get a palindrome (307484703).

The spelling of 103440402 in words is "one hundred three million, four hundred forty thousand, four hundred two".