40402354 has 8 divisors (see below), whose sum is σ = 60755868. Its totient is φ = 20150400.

The previous prime is 40402333. The next prime is 40402357. The reversal of 40402354 is 45320404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32433025 + 7969329 = 5695^2 + 2823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40402357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24387 + ... + 25990.

Almost surely, 2^40402354 is an apocalyptic number.

40402354 is a deficient number, since it is larger than the sum of its proper divisors (20353514).

40402354 is a wasteful number, since it uses less digits than its factorization.

40402354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50780.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40402354 is about 6356.2846065921. The cubic root of 40402354 is about 343.1380586446.

Adding to 40402354 its reverse (45320404), we get a palindrome (85722758).

The spelling of 40402354 in words is "forty million, four hundred two thousand, three hundred fifty-four".