1202042040 has 32 divisors (see below), whose sum is σ = 3606126480. Its totient is φ = 320544512.

The previous prime is 1202042003. The next prime is 1202042041. The reversal of 1202042040 is 402402021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202042041) 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, 5008389 + ... + 5008628.

Almost surely, 2^1202042040 is an apocalyptic number.

1202042040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202042040 is an abundant number, since it is smaller than the sum of its proper divisors (2404084440).

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

1202042040 is a wasteful number, since it uses less digits than its factorization.

1202042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10017031 (or 10017027 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1202042040 is about 34670.4779315198. The cubic root of 1202042040 is about 1063.2610029536.

Adding to 1202042040 its reverse (402402021), we get a palindrome (1604444061).

The spelling of 1202042040 in words is "one billion, two hundred two million, forty-two thousand, forty".