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2400942 = 23400157
BaseRepresentation
bin1001001010001010101110
311111222110210
421022022232
51103312232
6123243250
726256555
oct11121256
94458423
102400942
11139a955
12979526
13660a9b
14466d9c
153265cc
hex24a2ae

2400942 has 8 divisors (see below), whose sum is σ = 4801896. Its totient is φ = 800312.

The previous prime is 2400929. The next prime is 2400949. The reversal of 2400942 is 2490042.

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

2400942 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400949) 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, 200073 + ... + 200084.

It is an arithmetic number, because the mean of its divisors is an integer number (600237).

22400942 is an apocalyptic number.

2400942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2400942 is a wasteful number, since it uses less digits than its factorization.

2400942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400162.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2400942 is about 1549.4973378486. The cubic root of 2400942 is about 133.9041045540.

Adding to 2400942 its reverse (2490042), we get a palindrome (4890984).

The spelling of 2400942 in words is "two million, four hundred thousand, nine hundred forty-two".

Divisors: 1 2 3 6 400157 800314 1200471 2400942