40232394 has 48 divisors (see below), whose sum is σ = 90277512. Its totient is φ = 12939264.

The previous prime is 40232383. The next prime is 40232411. The reversal of 40232394 is 49323204.

It is a happy number.

40232394 is a `hidden beast` number, since 40 + 232 + 394 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25371369 + 14861025 = 5037^2 + 3855^2 .

It is a super-3 number, since 3×40232394³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128382 + ... + 128694.

Almost surely, 2^40232394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40232394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45138756).

40232394 is an abundant number, since it is smaller than the sum of its proper divisors (50045118).

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

40232394 is a wasteful number, since it uses less digits than its factorization.

40232394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 40232394 is about 6342.9010712765. The cubic root of 40232394 is about 342.6562243954.

Adding to 40232394 its reverse (49323204), we get a palindrome (89555598).

The spelling of 40232394 in words is "forty million, two hundred thirty-two thousand, three hundred ninety-four".