1040402250 has 48 divisors (see below), whose sum is σ = 2813253768. Its totient is φ = 277440000.

The previous prime is 1040402221. The next prime is 1040402269. The reversal of 1040402250 is 522040401.

1040402250 is a `hidden beast` number, since 10 + 4 + 0 + 402 + 250 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 701879049 + 338523201 = 26493^2 + 18399^2 .

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

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, 228951 + ... + 233450.

Almost surely, 2^1040402250 is an apocalyptic number.

1040402250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1040402250 is an abundant number, since it is smaller than the sum of its proper divisors (1772851518).

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

1040402250 is a wasteful number, since it uses less digits than its factorization.

1040402250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462424 (or 462411 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1040402250 is about 32255.2670117610. The cubic root of 1040402250 is about 1013.2900098581.

Adding to 1040402250 its reverse (522040401), we get a palindrome (1562442651).

It can be divided in two parts, 104040 and 2250, that multiplied together give a square (234090000 = 15300²).

The spelling of 1040402250 in words is "one billion, forty million, four hundred two thousand, two hundred fifty".